Well head apparatus



Feb. 7, 1939. Y I c. c. BROWN 2,145,344 I v WELL HEAD APPARATUS Filed Sept. 1, 1936' 2 Sheets-Sheet l =l=l1 7 z 3mm C'icero CfzBrown On its upper surface the nut 29 iormed with beveled gear'teeth adapted to receive the correspondingly beveled gear teeth onthe pinion 3L,

This pinion 3| is carried by a shaft 32 which extends outwardly through a stufilng box 33 havtated. Referring-' iiow to the lower portion of Fig. 1, it will be seen that thetubing 136 ,within the well is suspended at its upper end by means of'a suitable hanger 31, and is'provided' with an internal bevel 38 adapted to receive theexternal bevel ISgpn the'lower'end ofthe tubing'sectl'on I6. Thesupport 24 at its upperend is provided J with an internal inwardly extending key or lug 'o'; 931 than t H since" the "tubing. section I 6' is prevented from ro-- i f fe '39 which rides in a slot-- or keyway extending lon "gitudinally of the tubing sectionl6' transversely oithefthre'a'ds' 28 thereon. "It will readily be i 4 "1.-In' a well head-"structure, a valve adapted to rotation 'of the hand wheel '35 will seen, tha

nion13 l to rotate the nut ll and that tation" by" the key ilfthis' tubing section will lie '1 ed" h 1 w'eid' derepdi 's Law the. i ib n,wnmhthe'hand h ei 35jist'urned.'; When t e a ye lisiiri itsop'enlposit ior'iit willbe understood Fig: 4- 015 the drawingsr On the other hand, when it lsdesired" to close off the well tubing so thatthe valvej m'ay be closed;'- Clos-' :ingthe valve; 4j shuts off the "flow, not only through the tubing, but alsothrough fthe'jcasing, 4 asflw ad l tb w en '1 L Reiferringnow to -1 i g. 3 it is noted that the hand wheel 35 has been omitted from the shaft" f 1 :32, and'that inits place' therehas' been positioned a sprocket insimilar sprocket haslilgewise been; I ,placeduponthe shaft by' which the valve! is opeaten; and a'ch'ain' has; been placed about these two "sprockets so' that f when the hand wheel is operated to open?! .close me valve ljthe shaft t 3.2 lwill'be rotated 'fto lower'jo'rraisefthe'jtubing Q .is tc'tionjl'li simultaneously, "with thef "opening or g closing'of ithevalve'. By -this means', it is made .irnpossible jior the valve 'tolbe closed against the V tubing section IB when said section is in its lower positionganditisjlikewise impossibleior the tub- 'ing section lGfto be turned down against the upper 'faceof the valve when the valve isclosed, The devic isthusimade'less susceptible to darn; a'ge'tduefto"inadvertencej or carelessness of the operatoni, t

Also illustrated in Fig. 3, are the connections at t the upperend oithe tubing head structure. As

adapted" to be controlled by a valve fl placed therein, and'avalve 4; is'connecte'd tothe upper end of the fitting l5 .for the purpose of closing the upper ,endoi the tubing head structure. The

upper endofjthisivalve 43 may'ii desiredbe closed by a capiorQthe like v lflk having a plug 45 in its upper end which removed ior the purpose of connecting a pressure indicator thereto. 11 desired, alsovalves 46 may beprovided for controlling the casing flow lines 8 as illustrated in Fig.4. f

It will be understood that by this invention the well lia'sbeen provided-with what might be "termeda casing head structure in which a valve is incorporated capable of'entirely closing off the well. This casing head structure provides not only for this valve, but also for the flow lines for flowing the casing. In addition there has been comblned'wlth this novel casing head structure 'atublng head structure which cooperates therewith to 'iurnishacompletecontrol of the pressure and flow of the well. i The smallest possible number of parts has been utilized, and provision has been'made for eliminating the hazard of damage due to inadvertence or the operator.

, I clalmi connect with a well-casing and adapted to close oiflsaidi well casingfa tubing head structure mounted above'said" val'vean'd including a retractable gtubingsection: adapted to extend through saldvaive when the same is open, means for raising and loweringsaid "tubing: section, and means connecting said valve and 'said means for "raisingandlowerlng the tubing' section for simultaneous-operation, whereby a lowering of said tubing section andan opening of said valve will accompanying each other, anda raising-of said tubing sectionand a closing oi said valve will accompany eachioth'er. Y i

, *2. In a well head apparatus, a casing head I comprising a unitary valvestructure having an 1 inlet opening atone end thereof and adapted for connection to a well casing, and'an opening at the opposite: end thereof adapted to forni a seat for a tubing head .strlitdrjsaidvalvehaving a lateral outlet'openingadjacent said seat, and a I tubing head having apart sea-tedon said seat and a retractable tubing jsectio'nadapted to extend through said casing'head when the valve is open, rneans ifor'raislng andlowering said tubing section, and means connecting said valve and'said means for raising and lowering the tubing section for simultaneous operation, whereby a loweri'ng offsaid tubing s ection and an opening of said valve will accompany each other, "and ara'ising of said tubing 'sectlonand a'iclosing of said valve will accornpanyeach other; V v 3..-,In a well head structuraa casing having "an outlet .anda'lgate valve belowfsaid outlet, a .tubing' extendlng from thecpoint below said valve to a vpoir'i't above sald casing, saidtubing having separablejsections' adapted to be united at'a point belo'wsaid valve, randf an actuating. element to move saidlyalve' out of thepath ofsaid tubing and to thereuponlowerthe upper section of said .tubing upon the lower section thereof, and to elevatesaidupper section of'tubing out-oi the path of said valve and to thereupon close said valve. 2 i4. In a wellhead structurqa casing having an outlet and a gate valve below. said outlet, a tubing extending from-a point below said valve to a point above -said-'casing,.and consisting of a V fixedlypositione'dsection terminating below said valve and ai'section-movable through said valve whenthe same is open 't'o form a continuation of said first section, and -a;sing le actuatingmeans for simultaneously raisingsaid section and clos-Y I a s sa i n El i-Openingsaid'valve." t

v, cic R0 0. BROWN. 

